function hideLoadding(){
	$(".loadding").remove();
}

function showLoadding(){
	var html = '';
	html += "<div class='loadding'>";
		html += "<div class='loadding-wrap'>";
			html += "<img src='images/che.png' alt='' class='block auto loading_img'>";
			html += "<div class='che inline-block left-c'><img src='images/zuo.png' alt=''></div>";
			html += "<div class='che inline-block right-c'><img src='images/you.png' alt=''></div>";
			html += "<img class='auto' src='images/loading.png' alt=''>";
		html += "</div>";
	html += "</div>";
	$("body").append(html);
	$(".loadding").show();
}

function showAlert(Str){
	if($(".commonAlert").length == 0){
		var html = '';
		html += "<div class='commonAlert'>";
			html += Str;
		html += "</div>";
		$("body").append(html);
		}
	else{
		$(".commonAlert").html(Str);
		}
	$(".commonAlert").fadeIn(1500,hideAlert);
}

function hideAlert(){
	$(".commonAlert").fadeOut(1500);
}
